US3624756A - Apparatus for treating felled trees - Google Patents

Apparatus for treating felled trees Download PDF

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Publication number
US3624756A
US3624756A US3624756DA US3624756A US 3624756 A US3624756 A US 3624756A US 3624756D A US3624756D A US 3624756DA US 3624756 A US3624756 A US 3624756A
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US
United States
Prior art keywords
trees
delimbing
undelimbed
elongated
bin
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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English (en)
Inventor
Per Gustaf Mellgren
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Kockum Soderhamn AB
Original Assignee
Kockum Soderhamn AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Kockum Soderhamn AB filed Critical Kockum Soderhamn AB
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Publication of US3624756A publication Critical patent/US3624756A/en
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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/095—Delimbers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/095—Delimbers
    • A01G23/097—Delimbers having a fixed delimbing head
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/202—With product handling means
    • Y10T83/2092—Means to move, guide, or permit free fall or flight of product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/647—With means to convey work relative to tool station
    • Y10T83/664—Roller
    • Y10T83/6643—Shaped to conform to work

Definitions

  • Philpitt ABSTRACT An apparatus for simultaneously treating a bunched group of undelimbed felled trees comprising in combination an elongated bin into which the bunched group of undelimbed trees is deposited and caused to crowd more closely together as they move in a downward direction and feeding means for feeding the bunched group out of said bin, said feeding means including a vertically movable upper roll.
  • PATENTEUNUV 30 ISII SHEET 10F 5 uuv 30 um PATENTED SHEET u m 5 3, 624.756
  • APPARATUS FOR TREATING FELLED TREES Known apparatuses for delimbing trees are generally adapted to be fed with one tree at a time where high quality of the delimbing treatment is required. The time required for the treatment of each tree is then almost equal for logs having small cross section as for logs having large cross section, so that the working capacity of the apparatus is approximately proportional to the volume of wood of the tree trunk.
  • the object of the present invention is to provide a simple apparatus for treating undelimbed trees which apparatus can be fed with several trees simultaneously and consequently has a very high working capacity.
  • the invention relates especially to an apparatus for simultaneous treatment of several undelimbed, unbarked trees which have not been cut and classified, i.e. trees in their state after felling on the logging site.
  • the apparatus according to the invention is especially suitable for treating trees having small trunk cross section and intended for use as pulp-wood having a length of 2-6 m. and the like.
  • the apparatus can suitably be designed as a mobile apparatus so that it can easily be moved between various working sites, e.g., at or near the logging sites.
  • the invention can also be applied to apparatuses for working bigger trees and that the apparatus can be designed as a stationary unit, e.g., as a unit in a log handling installation in connection with an industry based on wood as raw material.
  • the apparatus according to the invention is characterized by an elongated device for collecting and assembling several trees fed simultaneously from above to said device, the latter being adapted to bring together or crowd the trees to a considerable extend during the movement of the trees downwardly in said device, tree feeding means for simultaneously feeding several trees from the collecting device in the direction of length of the latter, said feeding means comprising a roll which is preferably driven and is carried by a movable holder, preferably a swingable arm and is adapted to be pressed against and to compress the bundle of trees which is fed out from said collecting device.
  • the most essential advantage with the apparatus according to the invention is that bundles of trees in a highly compressed state can be fed to an apparatus connected to said collecting device and intended for treatment, e.g., delimbing, of the trees.
  • said collecting device e.g., delimbing
  • some limbs will be broken off, so that the following treatment, especially the cutting and delimbing treatment, of the trees is considerably facilitated and accelerated.
  • the tree treating apparatus proper can suitably be of the type in which simultaneous treatment of several trees is possible.
  • a suitable delimbing device of this type comprises one or more delimbing screws which extend along the tree to be treated.
  • FIG. 1 is a side view of a mobile logging machine comprising a collecting device according to the invention and a delimbing apparatus connected thereto as well as a feeding means for trees and a cutting device, said logging machine being shown as fed with a number of untreated trees,
  • FIG. 2 is a plane view of the logging machine according to FIG. 1, and without trees fed thereto,
  • FIG. 3 shows a cross section of a logging machine according to FIGS. 1 and 2 corresponding to the section III-Ill in FIG.
  • FIG. 4 shows a cross section of the logging machine according to FIGS. 1 and 2 corresponding to the section lV-IV in FIG. 1,
  • FIG. 5 shows the same cross section as FIG. 4 but with the log feeding means in idle position, FIG. 5 also showing a part of a loading truck with a tree grippling device for feeding trees to said logging machine.
  • the logging machine comprises a frame I with steerable front wheels 3 and rear wheels 5.
  • the logging machine comprises four main units, namely one unit 10 for collecting and crowding untreated trees, one unit 20 for feeding the trees, one unit 30 for cutting the trees and one unit 40 for treating the trees, the latter unit being shown as a delimbing apparatus.
  • the unit 10 consists of a tree collecting or capturing device 7 in the form of a trough, pocket, hopper or the like having a substantially horizontal bottom 13 and sidewalls of which dif ferent portions, as counted in the direction of length of the device, have diflerent inclination in a direction upwardly and outwardly with respect to the bottom 13, the portion 9, ll of said two sidewalls situated foremost of the logging machine having an inclination and extending to a height above said bottom 13 such that the distance between the upper parallel edges of the two wall portions is sufficient e.g., amounting to 1-2 m., or 2-5 times the average root end diameter of the logs, for the tree collecting device being capable of collecting without overspill, a bundle of approximately 5-10 undelimbed trees, which, when introduced into the collecting device, are held together approximately parallel with each other, e.g.
  • Wall portions and lla join the wall portions 9 and 11, respectively, and form transition portions to the foremost wall portions 9b, 11b, and 9c, llc, respectively.
  • the latter wall portions are situated at the portion of the logging machine where the tree feeding means 20 is arranged and extend perpendicular or nearly perpendicular to the substantially horizontal bottom 13 of the collecting device.
  • I It the wall portions 9b and llb extend upwardly and outwardly at different angles for facilitating the collecting of the trees when the latter are fed to the apparatus.
  • the tree feeding unit 20 comprises two lower, double-coni cal rolls l5 and 17 which may be driven or arranged to rotate freely about horizontal axes which are perpendicular to the direction of feed of the trees. Said rolls cooperate with an upwardly and downwardly movable roll 19 which is carried by a movable holder, namely an arm 21 swingably mounted at 23 on a upwardly directed projection 25 on the frame I of the logging machine.
  • the roll 19 can in known manner be provided with log gripping pins or projections and may be freely rotatable but is preferably driven in a manner not shown, eg by means of a hydraulic motor. Swinging of the arm 21 upwardly and downwardly is effected by means of a hydraulic motor or cylinder 27.
  • the axial length of the roll 19 and also that of the lower rolls l5, I7 is approximately equal to the distance between the wall portions 9c and I 1c of the collecting device 7.
  • the cutting unit 30 comprises a circular saw blade 31 which is driven by a motor 33, suitably a hydraulic motor, and is carried by an upwardly and downwardly swingable arm 35 which by means of a pin 37 is pivotably mounted to a projection 36 on the frame 1 and has an extension 38 between which and the frame of the machine a hydraulic motor 39 is inserted.
  • the saw blade 31 is driven with a speed and a torque such that the cutting of all logs in a bundle of logs may be carried out in a single working operation and preferably so quickly by means of the hydraulic motor 39 that the cutoff log sections fall straight downwardly without mentionable change in their direction of length and need not be supported, especially in order to avoid splitting the logs.
  • the log treating unit 40 comprises a delimbing unit with two elongated and parallel rotatable and driven delimbing members in the form of screws 45 and 47 which are provided with helical wall members 51 and 53 around their axes 55 and 57, respectively.
  • the wall members 51 and 53 are provided with preferably axially extending and preferably continuous sharp edges designed to cut off the tree branches extending into the space between said wall members and with abutment surfaces which are approximately parallel with the shaft of the screw and are intended to abut against the logs and prevent cutting off wood therefrom.
  • the delimbing members are supported in a manner shown at one end thereof in bearings near the cutting device 30 and at the other end at upwardly extending plates 59 supported by the frame 1 of the machine.
  • the delimbing members 45 and 47 may further be geared to each other so as to be driven with the same direction of rotation e.g., from a motor 56 schematically shown at the front end of the logging machine and via a transmission 57 likewise schematically shown, see FIG. 1.
  • the delimbing member 45 is situated at a higher level than the delimbing member 47 and is situated at a greater distance from a vertical .central plane lengthwise of the apparatus then the delimbing members 47.
  • an upand downwardly swingable unit 71 which comprises a frame 73 the length of which corresponds to the length of the delimbing members and which is provided with a number of rolls 75 rotatably mounted approximately perpendicularly to the direction of length of the frame.
  • the rolls are provided with helical flanges 77. Owing to repeated contacts between the logs and the rolls during the delimbing operation the logs will successively rotate in such a manner that the logs will become delimbed over their whole surface.
  • the unit 71 may be swingably mounted at its lower long side 79 about a shaft which is parallel with the delimbing means or in any other manner the swinging moment upwards and downwards of the unit 71 being effected by means of a hydraulic motor 80 inserted between the unit 71 and the frame 1 of the machine.
  • the logging machine is fed with a bundle of trees A.
  • the trees are inserted from above i.e., in a substantially vertical direction into the collecting device with their direction of length approximately horizontal i.e., parallel with the direction of length of the collecting device, and preferably with their root ends facing the delimbing unit 40.
  • the root ends of the trees are forced together and crowded so that they will arrive to a position approximately straight above the rolls and 17 of the tree feeding device.
  • the movable and preferably driven roll 19 is swung downwardly and is pressed against the bundle of trees so that said bundle is compressed and is fed from the collecting device to the delimbing unit 40.
  • the feeding is continued until the front ends of the logs abut against a stop plate 61 arranged at the remote end plate of the delimbing unit.
  • the ends of the trees can be drawn even if desired.
  • the logs are cut by means of the saw blade 31 whereafter delimbing of the cut logs can be affected.
  • the frame 73 with the rolls 75 is swung downwardly by means of the hydraulic motor 80 so that the logs A l which have been under treatment in the delimbing apparatus are screwn down to a stock A 2 of delimbed logs at the side of the logging machine.
  • the branches cut ofi during the delimbing operation are thrown by the delimbing means to a branch pile B at the opposite side of the logging machine. lt is evident that the feeding of the trees need not always be driven so far that the trees abut against the stop plate 61. If it is desired to delimb shorter logs the feeding of the bundle of trees can be stopped when the desired length of the logs has been fed into the delimbing apparatus whereafter the logs are cut. It may also be possible to arrange the stop plate so that it is adjustable in the direction of length of the delimbing apparatus so that exact, predetermined log sections can be obtained.
  • the logging machine according to the invention has a high working capacity also when fed only with logs having small cross dimensions, in contradistinction to known machines,
  • the machine can be operated by one man. Since the machine is also simple and does not pose any manufacturing problems but can be manufactured at a relatively reasonable cost with respect to the total number of functions and the work it is capable of carrying out in forest areas with small as well as large trees, the invention represents a considerable improvement and a corresponding reduction of the log handling costs.
  • the invention is not restricted to the embodiment shown and described since the latter may be modified and varied in different manner within the scope of the invention.
  • the side walls comprised in the collecting device 10 preferably consist of smooth, unbroken plates or sheets also other wall constructions can be used, the important thing being that the walls do not show projections or openings in which the branches of the trees can get caught and thus hinder the feeding of the trees.
  • the collecting device may consist of several, and if desired, different parts which may be arranged on a common frame which parts may be spaced from each other, e.g., several substantially U-formed, upwardly open elementsas seen in a plain perpendicular to the direction of length of apparatus-which elements may be arranged one after the other in the latter direction.
  • An apparatus for simultaneously treating a bunched group of undelimbed felled trees comprising in combination:
  • an elongated bin which is adapted to receive a bunched group of undelimbed felled trees that are deposited therein from above said bin
  • said elongated bin being constructed so that the bunched group of undelimbed trees deposited therein is caused to crowd more closely together as the bunched group of undelimbed trees moves in a downward direction within said elongated bin, and g c. feeding means for feeding a bunched group of undelimbed trees out of said elongated bin in a direction aligned with the longitudinal axis of said elongated bin,
  • said feeding means comprising at least one lower roll an at least one cooperating upper roll
  • An apparatus characterized in that said holder consists of a swingable ann pivotably mounted near one side of said device about an axis extending substantially parallel to the direction of length of said device.
  • An apparatus characterized in that the collecting device comprises a bottom with relatively small bredth and sidewalls the main portions of which extending obliquely upward and outwardly from said bottom.
  • bottom and sidewalls at least predominantly consist of continuous smooth plates or the like which are free from openings or projecting portions which would prevent the feeding of the trees.
  • An apparatus characterized in that the portions of the sidewalls situated near and on each side of the tree feeding means extend substantially vertically and are situated at a mutual distance approximately equal to the axial length of said roll.
  • An apparatus characterized by a delimbing device connected to said collecting device and comprising at least one elongated rotatable delimbing member extending in the direction of length of the trees.
  • An apparatus characterized by a tree cutting device arranged between the collecting device and the delimbing device and preferably consisting of a circular saw mounted on an upand downwardly swingable arm carried by the frame structure of the apparatus.
  • An apparatus characterized in that said frame is provided with a number of rolls, extending parallel to each other and substantially perpendicular to the direction of length of said frame and provided with projecting wall portions with sharp edges, if desired. said rolls being adapted to rotate the trees during the delimbing operation.

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
US3624756D 1968-11-13 1969-10-27 Apparatus for treating felled trees Expired - Lifetime US3624756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1540168A SE323795B (fi) 1968-11-13 1968-11-13

Publications (1)

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US3624756A true US3624756A (en) 1971-11-30

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US3624756D Expired - Lifetime US3624756A (en) 1968-11-13 1969-10-27 Apparatus for treating felled trees

Country Status (7)

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US (1) US3624756A (fi)
JP (1) JPS4923958B1 (fi)
DE (1) DE1956462A1 (fi)
FI (1) FI48236C (fi)
FR (1) FR2023170A1 (fi)
NO (1) NO131584C (fi)
SE (1) SE323795B (fi)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866639A (en) * 1972-11-02 1975-02-18 Tyotehoseura R Y Tree trimming and transporting machine
US4147190A (en) * 1976-06-22 1979-04-03 Nadeau Georges E Delimbing apparatus
US4295507A (en) * 1978-12-21 1981-10-20 Einar Karlsson Limbing and barking device
US4665961A (en) * 1985-02-06 1987-05-19 Osa Ab Machine for limbing trees arranged in bundles, especially small trees
US4805676A (en) * 1988-02-16 1989-02-21 Aikins Warren A Automatic whole and multiple tree firewood/hog fuel processor
US5394912A (en) * 1993-08-04 1995-03-07 Real Search Inc. Wood fibre debris processor
US6189583B1 (en) 1996-12-10 2001-02-20 Andritz-Patentverwaltungs-Gmbh Apparatus for removing barks from a wood- and bark-containing log flow
US20100044190A1 (en) * 2008-08-22 2010-02-25 Tsubakimoto Chain Co. Hoisting and lowering driving engagement multi-row chain
EP2345323A1 (fr) * 2010-01-19 2011-07-20 Centre National Du Machinisme Agricole, Du Genie Rural Des Eaux Et Des Forets (Cemagref) Véhicule de façonnage et fagotage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098311A (en) * 1976-11-26 1978-07-04 Kisa Tra Ab Forestry machines
SE8304633L (sv) * 1983-08-26 1985-02-27 Osa Ab Buntkvistningsanordning

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821220A (en) * 1954-02-01 1958-01-28 Thomas W Nicholson Log feed mechanism
US2889858A (en) * 1956-05-01 1959-06-09 Roberts Aaron Automatic log feeding and sawing apparatus
US3236274A (en) * 1963-01-23 1966-02-22 Abitibi Power & Paper Co Multi-tree length slasher
US3385331A (en) * 1965-01-11 1968-05-28 Sunds Verkst Er Aktiebolag Branch removing machine
US3500882A (en) * 1967-08-24 1970-03-17 Placements Jean Paul Tanguay L Mobile tree slasher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2821220A (en) * 1954-02-01 1958-01-28 Thomas W Nicholson Log feed mechanism
US2889858A (en) * 1956-05-01 1959-06-09 Roberts Aaron Automatic log feeding and sawing apparatus
US3236274A (en) * 1963-01-23 1966-02-22 Abitibi Power & Paper Co Multi-tree length slasher
US3385331A (en) * 1965-01-11 1968-05-28 Sunds Verkst Er Aktiebolag Branch removing machine
US3500882A (en) * 1967-08-24 1970-03-17 Placements Jean Paul Tanguay L Mobile tree slasher

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3866639A (en) * 1972-11-02 1975-02-18 Tyotehoseura R Y Tree trimming and transporting machine
US4147190A (en) * 1976-06-22 1979-04-03 Nadeau Georges E Delimbing apparatus
US4295507A (en) * 1978-12-21 1981-10-20 Einar Karlsson Limbing and barking device
US4665961A (en) * 1985-02-06 1987-05-19 Osa Ab Machine for limbing trees arranged in bundles, especially small trees
AU576658B2 (en) * 1985-02-06 1988-09-01 Osa A.B. Limbing machine
US4805676A (en) * 1988-02-16 1989-02-21 Aikins Warren A Automatic whole and multiple tree firewood/hog fuel processor
US5394912A (en) * 1993-08-04 1995-03-07 Real Search Inc. Wood fibre debris processor
US6189583B1 (en) 1996-12-10 2001-02-20 Andritz-Patentverwaltungs-Gmbh Apparatus for removing barks from a wood- and bark-containing log flow
US20100044190A1 (en) * 2008-08-22 2010-02-25 Tsubakimoto Chain Co. Hoisting and lowering driving engagement multi-row chain
US7921986B2 (en) 2008-08-22 2011-04-12 Tsubakimoto Chain Co. Hoisting and lowering driving engagement multi-row chain
EP2345323A1 (fr) * 2010-01-19 2011-07-20 Centre National Du Machinisme Agricole, Du Genie Rural Des Eaux Et Des Forets (Cemagref) Véhicule de façonnage et fagotage
FR2955230A1 (fr) * 2010-01-19 2011-07-22 Ct Nat De Machinisme Agricole Du Genie Rural Des Eaux Et Des Forets Cemagref Vehicule de faconnage et fagotage

Also Published As

Publication number Publication date
DE1956462A1 (de) 1970-06-11
FI48236B (fi) 1974-04-30
FI48236C (fi) 1974-08-12
NO131584C (fi) 1975-06-25
SE323795B (fi) 1970-05-11
FR2023170A1 (fi) 1970-08-07
NO131584B (fi) 1975-03-17
JPS4923958B1 (fi) 1974-06-19

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